When they met Liu Nian for the first time, he said that he wanted to become a great man. When they met for the second time, Liu Nian became the "white moonlight" in Ji Bai's heart. Ji Bai felt that if he didn't do it, he would be sorry for his gender.
When Ji Bai could not scold or complain to Liu Nian, Ji Bai realized that the person he had offended was not a "novice".